Oil burner



. Jan. 8, 1929. 1,698,129

o. c. GENGr-:LBACH OIL BURNER Filed Sept. 5, 1924 Y 2 Sheets-Sheet l 2 vSheets-Sheet 2 Jan. 8, 1929.

O. C. GENGELBACH OIL BURNER Filed Sept. 5, 1924 Patented Jan. 8, 1929.

, pire sra OTTO C. GENGELBACH,-OF WEST CHICAGO, ILLINOS.

OIL BURNER.

Application led September 5, 1924.V Serial'No. 736,081.

My invention relates to new and useful improvements in oil burners ofthe gravity type. More specicallyit relates to oil burners in connection with domestic heating plants and particularly to thattype which operates on the vaporizing-principle. D

Among the several objects of the invention lare the provision of anoil burner which is constructed in a manner to'promote'thorough vaporization ofthe oil; to 'provide a burner with a preheating ch'amberfwhereby the oil asit is fed to the burner proper will bevpreheated so asto better. assist in the proper vaporization thereof; to'provide a burner with cheap to manufacture.

With these and other objects in view which will more fully appear, the nature of the'invention will be more clearly understood by following the description, ythe appended claims, andthe several views'illustrated inV the accompanying drawings.

ment with the air passages. l The burner 8 includes'a bowlfhaving a centrally disposed Y cone or tip l5 projecting upward-ly fromlthe bottom thereof. This cone is formed with a plurality ofstepped portions formingV a resultant series of circularly disposed"`de` pressed seats. Theb'ody-portion of the cone is cut away to form aplurality of vertically i disposed slots-or recesses Vwhich eXtend-in.

wardly from tlieperiphery'of the conefto-a point adjacent the oil feeding pipe l7fwhich extends upwardly throughthe conef-These slots form the cone into aresultant seriesof spaced steppedportions. Depending' from the bottom of the'b'owl 8 and' preferably extending downwardly from the periphery thereof, is a marginal Y l flange which tapers downwardly and inwardly so aste-form a'supporting wall for asbestos '6, or other refractoryV material, which is packed within the flange andagainst the bottonioffthe bowl. Thus thefiange `and the refractory niateriialcooperate to form a" precombustion orf preheating chamber.

The oil feed pipe I17lvwhiehleads from: any suitable source of oil supply,`exten`ds upwardly through the combustion chamber, through the lbottom ofthe bowl'18, land In the accompanying drawings which -il- Lthrough't-he cone'.v VThe upper end of'theoil lustrate one form of'myinvention:

Figure 1 is a top plan view of aburner constructed in accordance with my invention,

VFigure 2 is a front elevation thereof, the furnace being shown in section, V

Figure 3 is a plan view of the'burner, the air inlet arches being shown in section,

Figure 4 is a vertical sectional 'view through the burner. and furnace,

Figure 5 .is a cross'sectional view taken on the line 5 5 of Figure 2, the view being enlarged,

Figure 6 is anendview of one of the ame spreaders, and

Figure 7 is a plan view thereof.

Like reference numerals designate corresponding parts throughout'the severalfigures of the drawings. f

As shown in theV accompanying'drawin'gs, the furnace l is provided with an ash *door 2 and a grate 3. Seated upon thegrate are vertically disposed air inlet passages 4 and 5.

,Disposed above the grate is my improved burner which includes a bowl 8 having lateral extensions 7 7 for supporting the burner. These extensions are lrespectively formed with openings 9 which are 1n alinepipe is locatedl at the apexl ofthe cone.

ln operationfwhen oil is fed through'the burner by gravity, I thev oilwill 'be `preheated asa resulteof ltheoil pipe passingupwardly through thepre'heating chamber. Thepreheated oil flows over` they iapex ofthe cone'and downwardlyonto the stepped portions thereof, and also into the spaces'or recessesibetween the 'stepped portions ofthe cone.' As a result, the-oil whichisflocatedfin the-vertical recesses of thecone will, when ignited,

cooperate tofurther preheat therincoming oil. Thus, the oil will be preheated before'it gets to thecone and immediately thereafter, and consequently combustion will be materially enhanced. v v.

Disposed above the Yburner is an air supplying means which in this instance consists of Y ends tapered v:as at 12 and unitingto'form a common discharge opening 13 arranged Icon'- centrically with the Aconeof the burner, and a centrally located baffle rib l1 spaced labove the tip or conen A. perforated` shield issup- I ported on the cone and projects upwardly into the opening 13, the incoming airmthus passing around the shield. Dampers 16 are respectively mounted in the air conduits for controlling the air as will be readily apparent.

In order to cause the flame vto be directed laterally against the walls of the furnace, I have provided a s pair of flame spreaders which are detachably mounted and .disposed Vin a horizontal plane on opposite sides of the .air conduits. They are preferably disposed 22, as shown in Figures 6 and 7, which fitin the recesses in said arches.

A .plurality of Vround steel rods 23, approximately fill that end of the pipe 17 between the valve 2-1 and the cone 15, as shown Y 5 in Figure 5. The rods regulate-the liow of oil through the pipe and also prevent the formation of scale within the pipe. 1

In operation, a small quantity of oil is first poured yinto the bowl 8, and this oil is then ignited to heat the cone and bowl. The valve 24is then opened, and as this oilflows through `the outlet endvof thepipe 17, it strikes against the shield 14 and, with the gas formedV by vaporization, is burned. The oil,

I while passing through the preheating chamber, is initially heated, and this preheated oil then leaves the pipe 17 and runs onto the cone 15, some of the oil passing into the verticalspaces of the cone at points close to the pipe 17. This oil being burned in these f spaces causes the upper end of the pipe to be further preheat the oil.

this action serves to This double preheating of the oil effects aquick and highly heated and consequently eiicient combustion action which is most desirable in this type of burnen I*It is Aof course to be understoodthat the details of structure and arrangements of parts may be variously changed and modified without departing from the spirit and scope of my invention.

What is claimed is 1. The combination of an oil burner having al grate, of a burner bowl supported thereon, an oil spreading and vaporizing member in the bowl, means for feeding oil tothe spreading and vaporizing member, and ay preheating chamber formed as a part of the bowl and packed lwith refractory material, said feeding meansl passing through the chamber, whereby the incoming oil will be preheated to .assistvaporization thereof. e

i 2. In an oil burner, the combination of a burner bowl, said bowl comprising a casting having an oil spreading and vaporizingV member integrally formed therewith and porial which when heated will serve to prehe'at f the oil supply pipe to assist vaporization.

3. In'an oil burner, a bowl, a tip formed with depressed stepped portions integral` with said bowl, said depressed `stepped portions being arranged in groups spaced apart,

a conduit extending through said bowl and..

tip, and air delivery meansv associated with said tip, saidv delivery `means comprising a 1 balilerib spaced above said tip.

4. In an loil burner, a b'owl,`a tip formed with depressed stepped portions arranged in groups spaced apart and .rising centrally from said bowl, a Vconduit'extending through f said bowl and tip, and air delivery means associated with said tip. 1

5. In an oil burner, the combination with a bowl, of a. cone extending upwardly from the bottom of the bowl, Va preheating chamber disposed below-the'bowl and supported thereby, and means for directing oill upwardly through the preheating chamber and thence n through said cone. l

6. In an oil burner, bowl, of a cone extending upwardly Vfrom 'the bottom ofthe bowl, a preheating `chamber disposedbelow said bowl and comprising an annular wall attached to the bowl, the spacev within the wall being filled with refractory material, and means for directing oil upwardly through thev refractory material of the preheating chamber andvthence through said cone.

7. In an oil burner, the combination with a bowl, of a cone extending upwardly from the the combination with Va I bottom of the bowl, a preheating chamber l disposedbelow said bowl and comprising an annular wall attached to the bowl, the space within the wall being filled with refractory material, means for directing oil upwardly through the refractory material of the preheating chamber .and thence through said cone, and a pair of'invertedl U-shaped air supplying arches having air inlet ends exte- V rior of the bowl and having air outlet ends uniting in a common airl discharge opening ing arches having air inlet ends exterior ofV `the bowl and having air outlet ends uniting in a common air discharge opening located directly above the cone, and horizontally disposed flame spreaders respectively arranged on opposite sides of and supported by the air supplying arches.

9. In an oil burner, the combination with a bowl, of a cone extending upwardly from the bottom 0f the bowl, a preheating chamber disposed below the bowl and supported thereby, and means for directing oil upwardly through the preheating chamber and thence through said cone, said cone being provided with a plurality of vetrically disposed slots extending inwardly from the periphery to aA point adjacent the bil feeding means.

l0. Inan Oil'burner, the combination with a bowl, of a cone extending upwardly from -the bottom of the bowl, a preheating chamber disposed below the bowl and supported thereby, and means for directing oil upwardly through the prelieating chamber andl thence through said cone, said cone being formed with a plurality of horizontally disposedcircular steps and with a plurality of vertically disposed slots extending inwardly from the periphery to points adjacent the f `the bottom of the bowl, and means for directing oil upwardly through the bowl and cone, said cone being provided with a plurality of yvertically disposed slots extending inwardly from the periphery to a point adjacent the oil feeding means.

12. In an oil burner, the combination with abowl, of a cone extending upwardly from the' bottom of the bowl, and means for directing oil upwardly through the bowl and cone, said cone being formedwithaI plurality of horizontally disposed circular steps and with a plurality of vertically disposed slots extending inwardly from the periphery to points adjacent the oil feeding means. Y

In testimony that I claim the foregoing as my own I have hereto affixed my signature.

vorfro eGnNGnLBAoI-I. 

